Key information relevant to the recruitment process for the
overall study, such as dates of the recruitment period and locations

Adult Chinese participants (≥18 and ≤75 years of age) with a diagnosis of Type 2 Diabetes Mellitus (T2DM) and inadequate glycemic control were selected to participate in this study.

Pre-Assignment Details

Significant events and approaches for the overall study
following participant enrollment, but prior to group assignment

There were 2344 participants who achieved A1C<7% in Phase 1; they completed Phase 1 and did not enter Phase 2. Of the remaining 2589 participants, 377 participants did not meet randomization criteria to enter Phase 2.

During Phase 2, participants received up to 6 mg glimepiride daily as an add-on to metformin + sitagliptin combination therapy for 24 weeks (Week 20 through Week 44). There were 552 participants randomized to this arm in Phase 2.

Phase 2: Metformin + Sitagliptin + Repaglinide

During Phase 2, participants received up to 16 mg repaglinide daily as an add-on to metformin + sitagliptin combination therapy for 24 weeks (Week 20 through Week 44). There were 550 participants randomized to this arm in Phase 2.

Phase 2: Metformin + Sitagliptin + Acarbose

During Phase 2, participants received 50-100 mg acarbose three times daily as an add-on to metformin + sitagliptin combination therapy for 24 weeks (Week 20 through Week 44). There were 556 participants randomized to this arm in Phase 2.

Phase 2: Metformin + Sitagliptin + Gliclazide

During Phase 2, participants received 30-120 mg gliclazide daily as an add-on to metformin + sitagliptin combinatino therapy for 24 weeks (Week 20 through Week 44). There were 554 participants randomized to this arm in Phase 2.

Explanation of how the number of participants for analysis was determined.
Includes whether analysis was per protocol, intention to treat, or another method.
Also provides relevant details such as imputation technique, as appropriate.

This population includes all participants who enrolled in Phase 1 and were GCP compliant.

Principal Investigators are NOT employed by the organization sponsoring the study.

There IS an agreement between Principal Investigators and the Sponsor (or its agents) that restricts
the PI's rights to discuss or publish trial results after the trial is completed.

The agreement is:

The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release
and can embargo communications regarding trial results for a period that is less than or equal to 60 days.
The sponsor cannot require changes to the communication and cannot extend the embargo.

The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release
and can embargo communications regarding trial results for a period that is more than 60 days but less than
or equal to 180 days. The sponsor cannot require changes to the communication and cannot extend the embargo.

Other disclosure agreement that restricts the right of the PI to discuss or publish trial results after the trial is completed.

Restriction Description:
The investigator agrees not to publish or publicly present any interim results of the study without the prior written consent of the sponsor. The investigator further agrees to provide to the sponsor 45 days prior to submission for publication or presentation, review copies of abstracts or manuscripts for publication that report any results of the study.